(intransitive) To loseconsciousness. Caused by a lack of oxygen or nutrients to the brain, usually as a result of a suddenly reduced blood flow (may be caused by emotional trauma, loss of blood or various medical conditions).

Bible, Mark viii. 8

If I send them away fasting […] they will faint by the way.

Guardian

Hearing the honour intended her, she fainted away.

To sink into dejection; to lose courage or spirit; to become depressed or despondent.

Faint means either how many, followed by o and the plural form of a noun with soft mutation, or how much, preceding o and the singular form of a noun, again with soft mutation. Sawl corresponds only to English how many and is followed by the singular form of a noun.